<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Promise.race</title>
</head>
<body>
    <script>
        // Promise.race   race 赛跑的意思
        // 参数 promise 数组
        // 返回结果： promise 对象
        // 状态由：最先改变的promise对象 决定
        // 结果值：最先改变状态的promise对象 决定

        let p1 = new Promise((resolve, reject)=>{
            resolve('ok');
        })
        let p2 = Promise.resolve('p2');
        let p3 = Promise.reject('p3');

        let p4 = Promise.race([p3,p1,p2]);
        console.log(p4);
    </script>
</body>
</html>